Renowned horror writer Shirley Jackson (Elisabeth Moss, Her Smell, The Invisible Man) is on the precipice of writing her masterpiece when the arrival of newlyweds (Odessa Young and Logan Lerman) upends her meticulous routine and heightens tensions in her already tempestuous relationship with her philandering husband (Michael Stuhlbarg, A Serious Man, Call Me by Your Name). The middle-aged couple, prone to ruthless barbs and copious afternoon cocktails, begins to toy mercilessly with the naïve young couple at their door.